- Tytuł:
- Kerr Effect Investigations of Magnetic Interlayer Interactions in EuS-PbS Multilayers
- Autorzy:
-
Kowalczyk, L.
Chernyshova, M.
Story, T.
Ha, J. K.
Voloubev, V. V.
Sipatov, A. Yu. - Powiązania:
- https://bibliotekanauki.pl/articles/2028788.pdf
- Data publikacji:
- 2001-09
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.20.Ck
75.30.Et - Opis:
- Kerr magnetometry was employed to study the temperature dependence of magnetization and magnetic hysteresis loops in ferromagnetic EuS-PbS semiconductor multilayers in the temperature range T=3-35 K at low magnetic fields H≤150 Oe. For EuS-PbS/KCl(100) structures with ultrathin non-magnetic PbS spacer of 1~nm, we observed a maximum on the temperature dependence of magnetization at low fields H≤30 Oe. For higher fields, we found for these structures a regular mean-field-like increase in magnetization with decreasing temperature. The same regular behavior was also found for EuS-PbS/KCl structures with thicker PbS spacer, as well as for all EuS-PbS/BaF$\text{}_{2}$(111) multilayers independently of spacer thickness. For qualitative interpretation of these findings, we consider two magnetic contributions to the total energy of EuS-PbS multilayers: the Zeeman energy and the antiferromagnetic interlayer exchange coupling between ferromagnetic EuS layers via diamagnetic PbS spacer.
- Źródło:
-
Acta Physica Polonica A; 2001, 100, 3; 357-363
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł